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| Oppo Find N6 laying flat with minimal crease. |
For years, Apple fans have been begging for a folding iPhone. And for just as long, the company has stayed silent — no prototypes shown, no teasers, no hints. But if you’ve been following the rumor mill lately, you’ll know that silence is about to break. According to multiple leaks, Apple is finally preparing to enter the foldable arena in September this year with a device tentatively called the iPhone Ultra.
So why the wait? It’s not because Apple lacks engineering talent. The real holdup, as insiders have repeatedly pointed out, is the crease. You know the one — that annoying, visible line that runs down the middle of almost every foldable screen after a few weeks of use. Apple, being Apple, refused to release a foldable until it could minimize that flaw to an acceptable level. And now, it seems they’ve found a solution. But here’s the kicker: even with all that R&D, the iPhone Ultra still won’t be the best in the business.
A “Mostly” Invisible Crease – But Not Better Than Oppo
The latest intel comes from a post on Weibo by the leaker Fixed Focus Digital, who has a decent track record with display-related rumors. According to the post, Apple’s foldable will surpass “most” competing brands when it comes to crease visibility. But note the word most. There’s one manufacturer Apple won’t be able to catch: **Oppo.
You can read the original Weibo post here: Fixed Focus Digital on Weibo
The leaker claims that the iPhone Ultra’s crease will be “comparable to the Oppo Find N6” — meaning it will be nearly invisible to the naked eye. However, run your finger across the screen, and you’ll still feel a shallow dip. That’s a huge improvement over most current foldables, but it’s still not the gold standard.
And the gold standard right now is Oppo’s Find N6. Oppo pulled off something that no other manufacturer has managed: a truly visually invisible crease. How? A combination of an improved hinge mechanism and their proprietary Auto-Smoothing Flex Glass — a material that actively reduces the appearance of the fold over time. It’s not magic, but it feels like it.
Apple, for its part, is reportedly using a different approach: Ultra Thin Glass (UTG) paired with an Optically Clear Adhesive (OCA) that fills the microscopic gaps in the folding zone. This should deliver an almost crease-less experience — just not quite as good as Oppo’s.
Battery Wars: Silicon Carbon vs. Traditional Cells
The display isn’t the only area where Oppo may have an edge. Batteries in foldables have become a quiet battleground, and Chinese manufacturers have been leading the charge with silicon-carbon battery technology. These cells offer higher energy density, meaning more juice in a thinner, lighter package. Oppo uses them in the Find N6.
Apple, meanwhile, is expected to stick with more traditional lithium-ion cells. That said, the iPhone Ultra is rumored to pack a 5,800 mAh battery — a surprisingly large capacity that would easily beat Samsung’s upcoming Galaxy Z Fold 8 lineup (rumored to top out at 5,000 mAh). So while Apple may not be using the bleeding-edge chemistry, they’re still making room for serious endurance.
For a more detailed breakdown of the battery specs and supply chain rumors, check out this report from TrendForce.
Why Apple’s Late Entry Might Still Pay Off
Let’s be honest: entering the foldable market in 2026 is late. Samsung has had nearly a decade to iterate. Oppo, Huawei, and Xiaomi have all released multiple generations. But being late has never hurt Apple before — remember the original iPhone? Or the Apple Watch?
What Apple does well is polish. They take an existing product category and refine it to the point where it feels inevitable. The iPhone Ultra probably won’t have the absolute best crease or the most advanced battery chemistry. But it will likely have the best app ecosystem for a foldable, the smoothest hinge mechanism, and the kind of build quality that makes you forget you’re holding a prototype.
Still, for crease-obsessed power users, Oppo remains the king. And that’s a rare thing to say when comparing any smartphone feature to Apple.
Final Thoughts: Wait for September
As with all pre-announcement rumors, take everything with a grain of salt. Apple hasn’t confirmed a single word about the iPhone Ultra. But the leaks are getting louder, the supply chain chatter is intensifying, and September is only a few months away.
If you’re in the market for a foldable today, the Oppo Find N6 is still your best bet for an invisible crease. But if you’re willing to wait — and you want a foldable that runs iOS with Apple’s ecosystem magic — the iPhone Ultra might just be worth holding out for. Just don’t expect it to beat Oppo at their own game.